EP 0134909 B1 19880629 - STYRENE-BUTADIENE BLOCK COPOLYMER
Title (en)
STYRENE-BUTADIENE BLOCK COPOLYMER
Publication
Application
Priority
- JP 8548181 A 19810603
- JP 17822680 A 19801217
- JP 18619480 A 19801226
- JP 18619580 A 19801226
Abstract (en)
[origin: EP0134909A1] A styrene-butadiene block copolymer having a Mooney viscosity (ML1+4, 100 DEG C) of from 10 to 150 comprises at least two specific types of random styrene-butadiene copolymer blocks (or one such copolymer block and one butadiene homopolymer block), the blocks differing in their bound styrene content and in the vinyl content of the butadiene portion. The total vinyl content of the whole bound butadiene is from 30 to 70% and the total bound styrene content is from 10 to 40% by weight. This block copolymer has excellent wet skid resistance and rolling resistance. It also has well-balanced fracture and wear characteristics as well as satisfactory processability and cold flow properties.
IPC 1-7
IPC 8 full level
C08F 297/04 (2006.01); C08G 81/02 (2006.01)
CPC (source: EP)
C08F 297/04 (2013.01); C08G 81/022 (2013.01)
Designated contracting state (EPC)
FR NL
DOCDB simple family (publication)
EP 0134909 A1 19850327; EP 0134909 B1 19880629; EP 0054440 A1 19820623; EP 0054440 B1 19850828
DOCDB simple family (application)
EP 84106266 A 19811217; EP 81305931 A 19811217